border-1px($color)
	position:relative
	&:after
		content:""
		display:block
		position:absolute
		left:0
		bottom:0
		width:100%
		border-top:1px solid $color
		
border-none()
	&:after
		display:none
		
bg-image($url)
	background-image:url("images/" + $url + '@2x.png' )
	@media(-webkit-min-device-pixel-ratio:3),(min-device-pixel-ratio:3)
		background-image:url("images/" + $url + '@3x.png')
		
ellipsis()
	overflow:hidden
	white-space:nowrap
	text-overflow:ellipsis
